WO2015176634A1

WO2015176634A1 - Stainless steel motor with high weather resistance and high sealing performance

Info

Publication number: WO2015176634A1
Application number: PCT/CN2015/079231
Authority: WO
Inventors: 吴国尧; 陈东; 周丰平
Original assignee: 斯培兔
Priority date: 2014-05-17
Filing date: 2015-05-18
Publication date: 2015-11-26
Also published as: US20170117770A1; US10361602B2

Abstract

A stainless steel motor with high weather resistance and high sealing performance comprises a cylindrical housing (11) made of a stainless steel material. A front end cover (12) is arranged at one end of the cylindrical housing, and a rear end cover (13) is arranged at the other end of the cylindrical housing. A rotary shaft hole (12a) is provided in the front end cover. A rotary shaft sealing sleeve (12b) is arranged in the rotary shaft hole, and a rotor shaft (12) is sleeved in the rotary shaft sealing sleeve (12b). A first drainage structure is arranged on the front end cover, and a second drainage structure is arranged on the rear end cover. A first wire penetrating hole (11a) and a second wire penetrating hole (11b) are provided in the cylindrical housing. A junction box (3) located on the outside of the first wire penetrating hole and a capacitor box (4) provided with a capacitor (4a) and located on the outside of the second wire penetrating hole are arranged on the outer wall of the cylindrical housing. A first sealing structure is arranged between the cylindrical housing and the junction box, and a second sealing structure is arranged between the cylindrical housing and the capacitor box. The motor has the advantages of easy drainage and good sealing effect.

Description

High weathering and high sealing stainless steel motor

Technical field

The invention belongs to the technical field of electric motors and relates to a high weathering and high sealing stainless steel motor.

Background technique

The motor needs to have a high sealing performance when used in an open air or high humidity environment. When the motor has good sealing performance, it not only has a long service life, but also has good motor running stability. Due to the constraints of the use environment, the existing high weathering motors are not only poorly sealed, but also have a short service life. For this reason, people have proposed various solutions after years of research. The Chinese patent document discloses a motor sealing structure [application number: 201220306112.6], which includes a front end cover, a rear end cover and a protective cover, the front end A sealing ring is provided at the joint of the cover and the rear end cover, and the front end cover and the rear end cover are fixed by bolts. A single-phase motor with a centrifugal switch generally uses a centrifugal hammer of 45 gauge steel and a spring that determines the opening and closing of the centrifugal hammer. In chemical pumps, high-pressure pumps for washing machines, equipment that is susceptible to seawater corrosion (such as motorboats, yachts, etc.), the life of the spring determines the life of the motor. If the spring corrosion breaks, the motor will Burned due to the inability to start the current continues to be too large. There has been no publicly reported use of stainless steel centrifugal switches.

In the above solution, a sealing ring is arranged between the front end cover and the rear end cover of the motor, and a semi-sealing ring groove for placing the sealing ring is respectively arranged on the connecting surface of the front end cover and the rear end cover, thereby improving the sealing property of the motor. However, this solution still has at least the following defects: the sealing performance of the whole machine is poor, especially the sealing at the motor lead port is poor. In addition, some of the motors are set in the open air or high humidity, and the motor usually appears during use. When the influent or condensed water is formed in the motor, if the accumulated water in the motor cannot be discharged in time, it may cause the motor to malfunction or burn out the motor.

Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a high weathering and high sealing stainless steel motor which is good in sealing property and easy to drain, in view of the above problems.

In order to achieve the above object, the present invention adopts the following technical solutions: a high weathering and high sealing stainless steel motor includes a motor casing, a stator and a rotor shaft passing through the stator are arranged in the motor casing, and a rotor is fixed on the rotor shaft. The rotor shaft is axially positioned and circumferentially rotatably connected to the motor casing, the motor casing comprises a cylindrical casing made of stainless steel material, and a front end cover made of aluminum material is provided at one end of the cylindrical casing, and One end is provided with a rear end cover made of aluminum material, and the stator is disposed on the inner wall of the cylindrical casing, and the two ends of the rotor shaft are respectively disposed on the front end cover and the rear end cover, and the front end cover is provided with a rotating shaft hole in the rotating shaft hole There is a rotating shaft sealing sleeve sleeved on the rotor shaft, a first drainage structure is arranged on the front end cover, a second drainage structure is arranged on the rear end cover, and a first threading hole and a first threading hole are arranged on the cylindrical housing. a threading hole, wherein the outer wall of the cylindrical casing is provided with a junction box located outside the first threading hole and a capacitor box with a capacitor outside the second threading hole, and the cylindrical casing and the junction box are disposed between the two First sealing structure in cylindrical housing A second sealing structure is provided between the capacitive cartridge.

In the present application, since the first sealing structure and the second sealing structure are provided, the sealing property at the lead opening of the motor casing can be improved, and secondly, the cylindrical casing and the front end cover are screwed and the sealing thread is coated with a sealant. The cylindrical casing and the rear end cover are screwed and coated with a sealant on the connecting thread, and the rotary shaft sealing sleeve can ensure the sealing property when the rotor shaft rotates or rotates, which not only prolongs the service life of the motor, but also has a simple structure and is easy to be The assembly and manufacture, the first drainage structure and the second drainage structure are arranged to: when the installation angle of the motor changes, it can also discharge the water inside the motor, thereby ensuring the utility and service life of the motor.

In the above high weathering high-sealing stainless steel motor, the first sealing structure includes a junction box gasket disposed between the cylindrical casing and the junction box, and has a side of the junction box gasket adjacent to the cylindrical casing a first arc that coincides with the outer wall of the cylindrical casing The sealing surface is sealed between the junction box gasket and the junction box by a horizontal sealing structure. The horizontal sealing structure includes a first horizontal sealing surface disposed on the junction box gasket, and a second horizontal sealing surface conformable to the first horizontal sealing surface is disposed at the bottom of the junction box.

In the above high-weather-resistant high-sealing stainless steel motor, the second sealing structure includes a capacitor box gasket disposed between the cylindrical casing and the capacitor box, and has a side of the capacitor box gasket near the cylindrical casing. The second arc-shaped sealing surface matching the outer wall of the cylindrical casing is sealed and connected between the capacitor box and the capacitor box gasket by a curved sealing structure. The arcuate sealing structure includes an outer arcuate sealing surface disposed on the capacitor box gasket, and has an arcuate cover surface conforming to the outer arcuate sealing surface at the open end of the capacitor box.

In the above high-weather, high-sealing stainless steel motor, the first drainage structure includes a plurality of first flat drainage holes disposed on the front cover side rings, and a plurality of first vertical drainage holes are disposed at the bottom of the front end cover. The second drainage structure comprises a plurality of second flat drainage holes disposed on the side rings of the rear end cover, and a plurality of second vertical drainage holes are provided at the bottom of the rear end cover, the first horizontal drainage holes a first vertical drain hole, a second horizontal drain hole and a second vertical drain hole respectively fixed with a drain hole plug. The drain hole plug is provided with a connecting thread and is sealed on the connecting thread. gum. In the middle of the drain plug, an annular groove and an annular seal ring disposed in the annular groove are provided. In addition, the first flat drain hole, the first vertical drain hole, the second flat drain hole and the second vertical drain hole enable the motor to meet various angle installation requirements, further improving the utility of the motor, and also capable of Timely drain the water inside the motor.

In the above high weathering and high sealing stainless steel motor, the cylindrical casing is made of a circumferentially closed stainless steel tubular profile, and the front end cover and the rear end cover are fixed to the cylindrical casing by a plurality of connecting rods. At both ends, the inner wall of the cylindrical casing is provided with a plurality of grooves disposed along the axial direction thereof for the connecting rods to pass through, and the grooves are respectively formed by strip grooves provided on the inner wall of the stainless steel tubular profile. .

The cylindrical casing is made of a circumferentially closed stainless steel tubular profile. The first and circumferentially closed stainless steel tubular profiles are of one-piece construction and can be cut off. The cost-applied cylindrical casing is produced, which not only ensures the structural strength but also improves the production efficiency, and the application is obviously easier to process and manufacture; the second, circumferentially closed stainless steel tubular profile is generally rolled or The tubular profile produced by the process of extrusion, etc., manufacturing, rolling or extrusion is stable in quality, and the application significantly improves the quality of the product of the cylindrical casing; thirdly, the production cost is reduced. Specifically, the present application The utilization rate of raw materials is very high. Secondly, the energy consumption in the manufacturing process is relatively low. In addition, the cylindrical casing of the present application can be obtained by using the stainless steel tubular profile, and the process is less, which reduces the production cost; The tank body is respectively formed by a strip groove formed on the inner wall of the stainless steel tubular profile, which is manufactured together with the stainless steel tubular profile rolling or extrusion, so as to ensure the product quality of the cylindrical casing of the present application. It can avoid machining errors caused by secondary processing and ensure product consistency.

In the above high weathering and high sealing stainless steel motor, the junction box gasket and the capacitor box gasket are made of silica gel.

In the above high-weather, high-sealing stainless steel motor, one end of each connecting rod is threadedly connected to the front end cover, and the other end has an end cap disposed on the outer wall of the bottom end of the rear end cover, and each of the connecting rods is provided with a heat shrinkable tube and A sealing gasket is provided between the end cap and the outer wall of the bottom of the rear end cap.

In the above-mentioned high weathering and high-sealing stainless steel motor, the second threading hole is provided with a wire plug, and the capacitor box gasket is provided with a corresponding second threading hole for inserting the wire plug. a wire hole, a conical sealing structure is arranged between the capacitor box gasket and the outlet plug, and a capacitor fixing fork seat is arranged on the capacitor box gasket, the capacitor is fixed on the capacitor fixing fork seat; the capacitor fixing fork seat is d Made of fine rubber. The tapered sealing structure includes an outer annular tapered surface disposed on the outlet plug, and an inner annular tapered surface conforming to the outer annular tapered surface is disposed in the second threading hole. A circumferential positioning structure for preventing circumferential rotation between the capacitor box gasket and the capacitor box is disposed between the capacitor box gasket and the capacitor box; the circumferential positioning structure includes a plurality of circumferential side portions disposed on the capacitor box gasket a notch, a plurality of screws disposed on the capacitor box pass through the notch and are connected to the cylindrical casing

In the above high-weather, high-sealing stainless steel motor, the rear end cover is provided with a centrifugal switch plate and a centrifugal switch disposed on the centrifugal switch plate, and the end of the rotor shaft near the rear end cover is provided to enable the The centrifuge is closed by a centrifugal switch and when the centrifuge is subjected to centrifugal force, the centrifuge opens the centrifugal switch, and a centering hole is provided in the central portion of the centrifugal switch plate for the rotor shaft to pass through. Centrifuges are prior art and will not be further described herein. The centrifugal switch plate of the present application is made of a stainless steel material, and has a long service life and is less prone to rust.

In the above high weathering and high sealing stainless steel motor, the centrifugal switch plate is made of stainless steel plate, and the centrifugal switch plate is fixed to the rear end cover by a plurality of connecting columns. The connecting post can be made of engineering plastic or metal material.

In the above-mentioned high weathering and high-sealing stainless steel motor, the rear end cover is provided with a plurality of inwardly recessed mounting bosses, and the connecting rods are in one-to-one correspondence with the mounting bosses and pass through the mounting bosses; The junction box consists of a stainless steel junction box base and a stainless steel terminal block that snaps onto the stainless steel junction box base. There is a junction box seal between the stainless steel junction box seat and the stainless steel terminal block, and an outlet on the stainless steel junction box base. The hole and the outlet plug disposed on the outlet hole. The structure of the structure is to improve the assembly efficiency of the motor and improve the sealing and practicability of the junction box. The outlet plug is made of nitrile rubber.

In the above-mentioned high weathering and high-sealing stainless steel motor, the two ends of the rotor are respectively fixed with annular rings, and at each end of the annular ring away from the rotor, a plurality of sheet-like bodies distributed in the circumferential direction are respectively arranged, the annular ring It is integrated with the sheet. The annular ring and the rotor are fixedly connected circumferentially by a plurality of fixing pins.

Compared with the prior art, the advantages of the invention are as follows: 1. The sealing property is good, and the sealing property at the lead opening of the motor casing can be improved by providing the first sealing structure and the second sealing structure, and secondly, the cylindrical casing and The front end cap is threaded and coated with a sealant on the connecting thread, the cylindrical shell and the rear end cap are threaded and the sealing thread is coated with a sealant, and the shaft seal sleeve can ensure the seal of the rotor shaft when the rotation or rotation stops. Sex, not only extends the life of the motor, but also has a simple structure and is easy to assemble and manufacture. The function of the first drainage structure and the second drainage structure is as follows: when the installation angle of the motor changes, it can also discharge the water inside the motor, thereby ensuring the practicability and service life of the motor; 2. Low manufacturing cost and easy 3. The cylindrical casing is cut from the circumferentially closed stainless steel tubular profile to improve the production efficiency, and at the same time ensure the structural strength of the whole machine and is not easy to rust.

DRAWINGS

1 is a schematic view of an exploded structure provided by the present invention.

2 is a schematic view showing the structure of a drain hole plug provided by the present invention.

3 is a schematic view showing the explosion structure of the drain hole plug provided by the present invention.

4 is a schematic view showing the state of a centrifugal switch when the motor is not activated according to the present invention.

FIG. 5 is a schematic structural view showing the state of the centrifugal switch after the motor is started and reaches a certain speed.

Figure 6 is a schematic cross-sectional view of the structure provided by the present invention.

Fig. 7 is a schematic view showing the structure of a connecting rod provided by the present invention.

In the figure: motor casing 1, drain hole plug 1a, annular groove 1b, O-ring 1c, cylindrical casing 11, first threading hole 11a, second threading hole 11b, tank body 11c, outlet plug 11d, front end Cover 12, shaft hole 12a, shaft seal sleeve 12b, first flat drain hole 12c, first vertical drain hole 12d, rear end cover 13, second flat drain hole 13a, second vertical drain hole 13b, installation Boss 13c, connecting rod 14, end cap 14a, heat shrinkable tube 15, sealing gasket 16, stator 21, rotor shaft 22, rotor 23, junction box 3, stainless steel junction box seat 31, stainless steel wiring cover 32, junction box sealing ring 33. Outlet plug 34, capacitor box 4, capacitor 4a, screw 41, junction box gasket 5, first curved sealing surface 51, first horizontal sealing surface 52, capacitor box gasket 6, and second arc sealing surface 61 The wire hole 62, the outer arc sealing surface 63, the notch 64, the capacitor fixing fork 65, the centrifugal switch plate 7, the yielding hole 7a, the centrifugal switch 71, the connecting column 72, and the centrifuge 8.

detailed description

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

As shown in FIG. 1 , a high weathering and high sealing stainless steel motor includes a motor casing 1 , and a stator 21 and a rotor shaft 22 penetrating the stator 21 are disposed in the motor casing 1 , and a rotor 23 is fixed on the rotor shaft 22 . The rotor shaft 22 is axially positioned and circumferentially rotatably connected to the motor housing 1;

Optimization scheme, as shown in FIGS. 1, 6, and 7, the motor casing 1 of the present embodiment includes a cylindrical casing 11 made of a stainless steel material, and the stainless steel material is made to solve the conventional materials including casting and the like. The motor casing is cumbersome and prone to rust. The end of the cylindrical casing 11 is provided with a front end cover 12 made of aluminum material, and the other end is provided with a rear end cover 13 made of aluminum material, and the aluminum material is aluminum. The alloy, which is not only light in weight but also low in manufacturing cost, can be manufactured by die casting or casting, and the cylindrical casing 11 is formed by cutting a circumferentially closed stainless steel tubular profile, and the circumferentially closed stainless steel tubular profile is taken. In order to improve the production efficiency, the structural strength of the whole machine can be ensured, and the sealing property is good and the rust is not easily rusted. The front end cover 12 and the rear end cover 13 are fixed to the cylindrical casing 11 through a plurality of connecting rods 14. The two ends of the cylindrical casing 11 are provided with a plurality of grooves 11c disposed along the axial direction thereof for the connecting rods 14 to pass through, and the grooves 11c are respectively provided by strips provided on the inner wall of the stainless steel tubular profile. The trough is taken out; on the side of the stator 21 A plurality of retaining grooves are provided in one-to-one correspondence with the groove body 11c.

Further, one end of each connecting rod 14 is screwed to the front end cover 12, and the other end has an end cap 14a disposed on the outer wall of the bottom end of the rear end cover 13, and a heat shrinkable tube 15 and a setting are disposed on each connecting rod 14 a sealing gasket 16 between the end cap 14a and the bottom outer wall of the rear end cover 13; secondly, a plurality of inwardly recessed mounting bosses 13c are provided on the rear end cover 13, the connecting rod 14 and the mounting boss 13c One corresponds to and passes through the mounting boss 13c.

In order to improve the sealing performance, as shown in FIG. 1, the stator 21 of the present embodiment is disposed on the inner wall of the cylindrical casing 11, and the two ends of the rotor shaft 22 are respectively disposed on the front end cover 12 and the rear end cover 13, and the rotor shaft 22 and the front end are respectively Between the cover 12 and between the rotor shaft 22 and the rear end cover 13 are respectively connected by roller bearings. In order to further extend the service life of the motor, annular rings 23a are respectively fixed at both ends of the rotor 23, and are spaced apart from each annular ring. One end of the rotor is respectively provided with a plurality of sheet-like bodies 23b distributed in the circumferential direction, and the annular ring 23a and the rotor 23 are fixedly connected circumferentially by a plurality of fixing pins 23c, and the annular ring is integrally connected with the sheet-like body. A rotating shaft hole 12a is disposed on the front end cover 12, and a rotating shaft sealing sleeve 12b sleeved on the rotor shaft 22 is disposed in the rotating shaft hole 12a. The front end cover 12 is provided with a first drainage structure, and the rear end cover 13 is provided with a first drainage structure. The second drainage structure is provided with a first threading hole 11a and a second threading hole 11b on the cylindrical casing 11, and the outer casing of the cylindrical casing 11 is provided with a junction box 3 located outside the first threading hole 11a and at the second Capacitor box 4 with capacitor 4a outside the threading hole 11b, optimization scheme, this embodiment The junction box 3 includes a stainless steel junction box base 31 and a stainless steel wiring cover 32 fastened to the stainless steel junction box base 31. A junction box sealing ring 33 is provided between the stainless steel junction box base 31 and the stainless steel wiring cover 32. The cassette holder 31 is provided with an outlet hole and an outlet plug 34 disposed on the outlet opening. Further, a first sealing structure is provided between the cylindrical housing 11 and the junction box 3, and the cylindrical housing 11 and the capacitor case 4 are provided. a second sealing structure is provided between;

Optimizing the archive, the first sealing structure of the present embodiment includes a junction box gasket 5 disposed between the cylindrical casing 11 and the junction box 3, and has a barrel on the side of the junction box gasket 5 near the cylindrical casing 11. The first curved sealing surface 51 of the outer wall of the casing 11 is matched, and the junction box gasket 5 and the junction box 3 are sealed and connected by a horizontal sealing structure; specifically, the horizontal sealing structure of the horizontal sealing structure includes a setting a first horizontal sealing surface 52 on the junction box gasket, and a second horizontal sealing surface at the bottom of the junction box that is compatible with the first horizontal sealing surface;

In addition, the second sealing structure includes a capacitor box gasket 6 disposed between the cylindrical casing 11 and the capacitor case 4, on the side of the capacitor box gasket 6 near the cylindrical casing 11 The second arc-shaped sealing surface 61 is matched with the outer wall of the cylindrical casing 11. The capacitor box 4 and the capacitor box gasket 6 are sealed and connected by a curved sealing structure; specifically, the arc-shaped sealing structure here The outer arcuate sealing surface 63 is disposed on the capacitor box gasket, and has an arcuate cover surface at the open end of the capacitor box that matches the outer arcuate sealing surface.

Next, as shown in FIG. 1, a wire plug 11d is disposed on the second threading hole 11b, and the capacitor box gasket 6 is provided with a corresponding second threading hole 11b and inserted into the outlet plug 11d. The through hole 62 has a tapered sealing structure between the capacitor box gasket 6 and the outlet plug 11d; the tapered sealing structure includes an outer annular cone surface disposed on the outlet plug, and is disposed in the second threading hole The inner annular cone surface which is matched by the outer annular cone surface is provided with a capacitor fixing fork 65 on the capacitor box gasket 6, and the capacitor 4a is fixed on the capacitor fixing fork 65. A circumferential positioning structure for preventing circumferential rotation between the capacitor box gasket 6 and the capacitor box 4 is disposed between the capacitor box gasket 6 and the capacitor case 4; the circumferential positioning structure includes a plurality of capacitor housing gaskets 6 disposed The circumferential side notch 64, a plurality of screws 41 provided on the capacitor case 4 pass through the notch and are connected to the cylindrical casing 11.

The first drainage structure of the present embodiment includes a plurality of first flat drainage holes 12c disposed on the side rings of the front end cover 12, and a plurality of first vertical drainage holes 12d are disposed at the bottom of the front end cover 12, The second drainage structure includes a plurality of second flat drainage holes 13a disposed on the side rings of the rear end cover 13, and a plurality of second vertical drainage holes 13b are disposed at the bottom of the rear end cover 13, the first flat drainage The drain hole 12c, the first vertical drain hole 12d, the second flat drain hole 13a and the second vertical drain hole 13b are respectively fixed with a drain hole plug 1a, and the drain hole plug 1a is provided with a connecting thread and The connecting thread is coated with a sealant;

In order to improve the sealing property and further improve the assembly efficiency, an annular groove 1b and an O-ring 1c provided on the annular groove are provided in the middle of the drain hole plug 1a.

Optimization scheme, as shown in FIGS. 1 and 4-5, a centrifugal switch plate 7 and a centrifugal switch 71 disposed on the centrifugal switch plate 7 are disposed in the rear end cover 13 of the present embodiment, and the rotor shaft 22 is adjacent to the rear end. One end of the cover 13 is provided to enable the centrifugal switch 71 to be closed Centrifuge 8 and when the centrifuge 8 is under the action of centrifugal force, the centrifuge 8 opens the centrifugal switch 71, and in the central region of the centrifugal switch plate 7, a retaining hole 7a through which the rotor shaft 22 passes is provided; Here, the centrifugal switch plate 7 is made of stainless steel plate, and the centrifugal switch plate 7 is fixed to the rear end cover 13 by a plurality of connecting posts 72. When the centrifugal device 8 closes the centrifugal switch 71, the static contact and the movable contact disposed on the centrifugal switch plate 7 are in contact with each other, and the motor is in a stopped state. When the motor speed reaches a certain rotational speed, the centrifuge 8 is centrifuged. The switch 71 is opened, that is, the stationary contact and the movable contact are separated, and the static contact and the movable contact are contacted or separated by the elastic piece, and the centrifugal device 8 can deform the elastic piece. The elastic piece is made of a stainless steel material.

In this embodiment, the junction box gasket and the capacitor box gasket can ensure the sealing at the lead outlet, through the first arc sealing surface disposed on the junction box gasket and the second arc disposed on the capacitor box gasket The structure combined with the sealing surface can further ensure the sealing property. In addition, the structure of the rotating shaft sealing sleeve can ensure the sealing of the rotating and stopping state of the motor; in addition, the first flat drainage hole 12c and the first vertical drainage hole 12d The combined structure of the second flat drain hole 13a and the second vertical drain hole 13b can meet the use requirements of the motor installation angle to make the motor usable.

The specific embodiments described herein are merely illustrative of the spirit of the invention. A person skilled in the art can make various modifications or additions to the specific embodiments described or in a similar manner, without departing from the spirit of the invention or as defined by the appended claims. The scope.

Although the motor casing 1, the drain hole plug 1a, the annular groove 1b, the O-ring 1c, the cylindrical casing 11, the first threading hole 11a, the second threading hole 11b, the groove body 11c, and the outlet line are used more frequently herein. Plug 11d, front end cover 12, shaft hole 12a, shaft seal sleeve 12b, first flat drain hole 12c, first vertical drain hole 12d, rear end cover 13, second flat drain hole 13a, second vertical drain Hole 13b, mounting boss 13c, connecting rod 14, end cap 14a, heat shrinkable tube 15, sealing gasket 16, stator 21, rotor shaft 22, rotor 23, junction box 3, stainless steel junction box base 31, stainless steel wiring cover 32, Wiring Cartridge seal 33, outlet plug 34, capacitor box 4, capacitor 4a, screw 41, junction box gasket 5, first curved sealing surface 51, first horizontal sealing surface 52, capacitor box gasket 6, second arc The sealing surface 61, the wire hole 62, the outer arc sealing surface 63, the notch 64, the capacitor fixing fork 65, the centrifugal switch plate 7, the bit hole 7a, the centrifugal switch 71, the connecting column 72, the centrifuge 8 and the like, but The possibility of using other terms is not excluded. These terms are only used to describe and explain the nature of the invention more conveniently; it is to be construed that any additional limitation is inconsistent with the spirit of the invention.

Claims

A high weathering and high sealing stainless steel motor, comprising a motor casing (1), a stator (21) and a rotor shaft (22) passing through the stator (21) in the motor casing (1), in the rotor shaft (22) The rotor (23) is fixedly mounted, and the rotor shaft (22) is axially positioned and circumferentially rotatably connected to the motor casing (1), characterized in that the motor casing (1) comprises a stainless steel material. a cylindrical casing (11) having a front end cover (12) made of aluminum material at one end of the cylindrical casing (11) and a rear end cover (13) made of aluminum material at the other end, the stator (21) disposed on the inner wall of the cylindrical casing (11), the two ends of the rotor shaft (22) are respectively disposed on the front end cover (12) and the rear end cover (13), and the front end cover (12) is provided with a rotating shaft hole (12a), a shaft sealing sleeve (12b) sleeved on the rotor shaft (22) is provided in the shaft hole (12a), and a first drainage structure is provided on the front end cover (12), and the rear end cover (13) The second drainage structure is disposed on the cylindrical casing (11), and the first threading hole (11a) and the second threading hole (11b) are disposed on the outer wall of the cylindrical casing (11). a junction box (3) outside the hole (11a) and a power supply outside the second threading hole (11b) a capacitor box (4) of (4a), a first sealing structure between the cylindrical casing (11) and the junction box (3), in the cylindrical casing (11) and the capacitor casing (4) A second sealing structure is provided between them.
A high weathering, high-sealing stainless steel motor according to claim 1, wherein said first sealing structure comprises a junction box gasket (5) disposed between the cylindrical casing (11) and the junction box (3) a first arcuate sealing surface (51) conforming to the outer wall of the cylindrical casing (11) on the side of the junction box gasket (5) adjacent to the cylindrical casing (11), said junction box sealing The pad (5) and the junction box (3) are sealed and connected by a horizontal sealing structure.
The high weathering and high sealing stainless steel motor according to claim 2, wherein said second sealing structure comprises a capacitor box gasket (6) disposed between the cylindrical casing (11) and the capacitor casing (4). a second arc-shaped sealing surface (61) matching the outer wall of the cylindrical casing (11) on a side of the capacitor box gasket (6) adjacent to the cylindrical casing (11), the capacitor box ( 4) and the capacitor box gasket (6) is sealed and connected by a curved sealing structure.
The high weathering and high sealing stainless steel motor according to claim 1 or 2 or 3, wherein the first drainage structure comprises a plurality of first flat drainage holes (12c) disposed on the side rings of the front end cover (12). a plurality of first vertical drain holes (12d) are provided at the bottom of the front end cover (12), and the second drainage structure includes a plurality of second flat drain holes disposed on the side rings of the rear end cover (13) (13a), a plurality of second vertical drain holes (13b) are provided at the bottom of the rear end cover (13), the first flat drain hole (12c), the first vertical drain hole (12d), and the first The drain hole plug (13a) and the second vertical drain hole (13b) are respectively fixed with a drain hole plug (1a). The drain hole plug (1a) is provided with a connecting thread and is coated on the connecting thread. Covered with sealant.
A high weathering and high-sealing stainless steel motor according to claim 1 or 2 or 3, wherein said cylindrical casing (11) is formed by cutting a circumferentially closed stainless steel tubular profile, said front end cover ( 12) and the rear end cover (13) are fixed to both ends of the cylindrical casing (11) through a plurality of connecting rods (14), and the inner wall of the cylindrical casing (11) is provided with a plurality of axially disposed and provided for The connecting rod (14) passes through the groove body (11c), and the groove body (11c) is respectively cut by a strip groove provided on the inner wall of the stainless steel tubular profile.
The high weathering and high sealing stainless steel motor according to claim 5, wherein one end of each connecting rod (14) is screwed to the front end cover (12), and the other end has an outer wall disposed at the bottom of the bottom end cover (13). The end cap (14a) is provided with a heat shrinkable tube (15) and a sealing gasket (16) disposed between the end cap (14a) and the bottom outer wall of the rear end cap (13) on each connecting rod (14).
The high weathering and high-sealing stainless steel motor according to claim 3, wherein the second threading hole (11b) is provided with a wire plug (11d), and the capacitor box gasket (6) is provided with a seat a second threading hole (11b) corresponding to the wire hole (62) inserted into the wire plug (11d), and a tapered seal between the capacitor box gasket (6) and the outlet plug (11d) Structure; a capacitor fixing fork (65) is disposed on the capacitor box gasket (6), and the capacitor (4a) is fixed on the capacitor fixing fork (65).
The high weathering and high sealing stainless steel motor according to claim 1 or 2 or 3, wherein the rear end cover (13) is provided with a centrifugal switch plate (7) and is disposed on the centrifugal switch plate (7). a centrifugal switch (71), at one end of the rotor shaft (22) near the rear end cover (13), a centrifuge (8) capable of closing the centrifugal switch (71) is provided and when the centrifuge (8) is The centrifugal device (8) is opened by the centrifugal force (8), and a retaining hole (7a) through which the rotor shaft (22) passes is provided in a central region of the centrifugal switch plate (7).
The high weathering and high sealing stainless steel motor according to claim 8, characterized in that the centrifugal switch plate (7) is made of stainless steel plate, and the centrifugal switch plate (7) is fixed by a plurality of connecting columns (72). On the rear end cover (13).
The high weathering and high sealing stainless steel motor according to claim 6, wherein the rear end cover (13) is provided with a plurality of inwardly recessed mounting bosses (13c), and the connecting rods (14) One-to-one correspondence with the mounting boss (13c) and passing through the mounting boss (13c); the junction box (3) includes a stainless steel junction box seat (31) and stainless steel fastened to the stainless steel junction box seat (31) The wiring cover (32) is provided with a junction box sealing ring (33) between the stainless steel junction box seat (31) and the stainless steel wiring cover (32), and a wire outlet hole is arranged on the stainless steel junction box base (31) and is arranged at the outlet line Outlet plug on the hole (34).